Kinetoscope.



E. S. PORTER.

KINETosc'oPE. `P?LIOATION FILED MARMI, 1911.

a uurs-'SHEET 2.

'6 Inventor: i fda/12 fref -Patented Oct. 15

tijd l E. S. YORTER.

KNETOSCOPB.

APrLxoA'TIoN FILED M1111.4,1911.

Patented 001.415, 19,12.

9 SHEETS-SHEET 4.-

In V011 tot:

l' faQ/125 E176,

E. S. PORTER.

KINBTOSCOPB.

APPLIGATXON FILED MAB. 4, 1911.

Patented o@t.15,1912.

9 SHEETS-SHEET 5.

n 'Attest 7 Inventor:

. Hwa): /'cr B. s. PQRTER.

KINETOSGOPE.

A APPLICATION FILED MAR.4,1911.

Patented Oct. 15, 1912.

9 SHEETS-SHEET e'.

In Ven tor: wwcgf/W L LM A t t E. S. PORTER.

KINETOSGOPB.

APPLICATION` FILED MAR. 4,1911.

Patented Oct. 15, 1912.

9 SHEETS-SHEET 7.

E. s. PORTER, KINETOSGOPB.

APPLICATIONTILED MARA, 1911..

1,041,345. Patented 0ct. 15,1912.

9 SHEETS-SHEET s.

' Inventor:

A t ty E. S. PORTER.

KINBTOSGOPE.

APPLIoATIoN num 1111.4, 1911.

1,041,345.- Patented 001.1511912.

9 SHEETS*SHEET 9.

- UNIT-ED, STATES PATENT OFFICE.

EDWIN s. ronrna, 'or Nnw You, N. Y., AssIGNon or ONE-HALF 'ro FRANCIS n, cnNNocx, or NEW You, N. Y.

KINETOSCORE.

Specification of Letters Patent.

Patented oct. 15,1912.-

Application led Iarch 4, 1911. Serial No. 612,417'.

T all 'fw/tom it may concern Be it known. that I, EDWIN S. PORTER, a citizen of the United States of America, and residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in y Kinetoscopes, o`f which the following is a fand use the same.

specification, such as will enable those skilled in the art to which it"*appertains toI make j accurately framing the said photographsV as they are successivelyl projected, wit-hout the necessity for moving any of the operative parts of the said projector out of nor` mal positions, asfor instance vertically as in projectors at present employed, said framing being accomplished by a rotary adjustment, bac-kwardly or forwardly, of

lthe intermittent film-carrying sprocket., to

vary the position and moment of initial movement thereof, by changing the portion of the periphery engaging the film during the movement of the latter.

A further object is to provide a shutter -for closing off the light at the aperture o f the projector during the intermitten't'move ment of the film, and also to provide means whereby the shutter maybe adjusted, withy respect to thefmoment of aperture closure, simultaneously with and in the degree of the adjustment of said intermittent sprocket.

A further object is ,to .provide means for, adjusting the said shutter independently of .said intermittent sprocket, in order to obvif ate the lines, shadows, or ghost effect, on the screen due to lack of coincidental film and 'shutter operatic-n. j

A further object is to accomplish the said X shutter and sprocket adjustments during the operation of the projector.

A further object 1s to so mount' -the saidy shutter as to bereadily replaced by another of greater or less surface or with a different number of blades,-and so as to be enabled,

also, to increase .ordecrease the speed of rotation thereof in' the ratio of shutter surface or construction. l y

A flirther object- 1s 'tu solocqgthe man,

operati on.

ual devices for adjusting the said feedingsprocket, shtter,flenses, andy stereopticon,

when employed, as to be readily reached by the free hand of an operator not employedV in turning the crank of the projector.

A further object is'to completely inclosethe operative parts of the projector, as well as the film, whereby, no injury can result thereto, and whereby the film, if ignited, is-

quickly quenched and without any notice of such ignition exteriorly of the projector, thus preventing panic among the audience as Well as the spread of fire from the film.

furtherobject is to provide a fire-door for the said projector which automatically closes to protect the lm in the event of too slow operation, or stopping, of the projector.

A further object is to so construct the said projector as to permit of passing the film thereinto atany point intermediate of the ends ofsaid film, as`well as the removal thereof from the projector atany time.

A further object is to provide a film trapi door which is quickly and easily moved out of and into operative positions, and which is readily removable from the projector for cleansingfand repair.

`A further'object is to provide a stand or support for the projector and for the lampboX which is readily adjustable rotarily, vertically, and at desired angles.

A further object is to so mount the lampboX upon rthestand as to be readily swung from projectorto stereopticon positions, or thereverse, by the free hand of the operator apd Without special effort. y

A further object is to provide a sectional cell for the condensers inthe lamp-box,

whereby the distance between the condensers may be readily adjusted to meet varying conditions or to compensate for' varying thicknesses of the said condensers, and

'whereby the condensers may be readily removed for replacement or cleansing. at any time. i A

A further object is'toso mountthe said condensers as to permit expansionor contraction thereof Without fear of breakage; and still further objects are to provide such projectors which are very practical, well adapted to the purpose for which they are designed, whichpermit of entiremanipulation from one-point and during the operation thereof, and which arepractically noiseless the inventati ruuy deseaba@ in vnl@ following speoihcation, of which the accompanying drawings' forma part, in whichl the separa-te parts are designated by the same reference characters in each of the views,

and in which:-

Figurel'l is an elevation of a kinetoscope, constructed according to this inventlon, on

the operating side thereof, partly broken# away to show a det-ail 'of the construction;

v Fig. 2 is a planview thereof; Fig. 3 is an enlarged elevation of the side shown in Fig.

1, of the projector only, with the side door removed, and partly in section; Fig. 4 is a view similar to Fig. 3,- on lthe side opposite' to that shown in Figs. land 3,:an'd with the `v side door also removed; ig. "5 'is an end elevation looking. in the direction of the arrow X in Fig. 3, Awith the housing removed; Fig. 6 is a horizontal section taken on the lline 6-6 of Fig: 5, with the housing in position; Fig. 7 is a fragmentary view, similar'to Fig. 4,7wit-h` the operative parts in section' to show the construction and op eration' thereof, with the housing removed and'with several parts omitted; Fig. 8 is anenlarged fragmentary plan view of the stereopticon adjusting means; Fig. 9 is an enlarged fragmentary -view of vthe' intermittent sprocket operating mechanism, taken onf the line 9 9 of Fig. 4, approximately,

vand of Fig. l0; Fig. 10 is a sectioh thereof taken on the line 10-10 of Fig. .9, with' .parts in a different position; Fig. 11 is a fragmentary detail view taken on the line 11-11- ofFig. 3 and showing the ilin trapdoor; Fig. 12 is a fragmentary section taken Aon-the line .l2-l2 of Fig. 6 and showingv the shutter construction and operating mechanism; Fig.' 13 is an enlarged fragmentary tsection 'on the line 13--13 of Fig. 1 showing the condenser `carrier of the lamp-box; and

Fig. 14 4ist-a section taken on the line 14-.14 of Fig. 13. A .j

In the-drawings forming a part of this application-a preferred form of embodiment of a .kinetoscofpe is shown,v comprising a stand @carrying a lamp-box b, and a-project-or 0, serving as a support for a4 Stereopticon d, said stand comprising a base -upon` which is mounted 'a pedestal a? having a j platform a3 Vat the top thereof pivoted at a* to' a rotary member a5 of the pedestal a?, -gadaptedt be locked against rotation bymeansof a setY screw a6 or the equivalent theplatforin a3 serving as a support for the projector c' at oneendand having a bracket a pivoted thereto at'its other end, at as, and. .which is also pivoted to arplate a". adjustable upon a segmental bar al and to which it is adapted to be locked by r; eansof a'set screw 4a or the 'equiy'alenh thus serving to tilt the platform s to any desired angle. The bracket-a7l is pivoted, atits outerend, to the base of the lamp-box b, as shown at b3,

noline/ia Fig. 2, a supplemental parallel bar h4 being also pivoted thereto and. to the platform a3 in order to insure a parallel swinging movement of the lamp-box, limiting devices' beling provided on the bottom of the lamp-box to insure exact positioning of the lamp-box in either the projector or stereopticon uses,

these devices being merely indicated in the drawings as they may be of any desired for:

to receive: one of the condensers, 58, a similar ring b9 being slidablyadjustable upon the ring b" and carried by horizontal rods 711 securedy to the slide-box, said ring b being` likewise provided with an annular groove to receive a condenser 611, the object of this adjustable relationship between the rings 127 and b being to accommodate the same to condensers of varying thicknesses, aswell `as to be enabled to Y'adjust the distance therebetween, ifany separationl thereof is desired for any reason, and said lamp-box carries.'V a complementa] ring 1112 above the condens-" ers to serve as a cover therefor "when in.

their extreme inner positions but, by reference to Fig. 14, it will be seen'that when the slide-box b is moved outwardly the con# densers are carried. therewith and are readily removable from their supporting rings for cleansing or substitution and, because of the methodv of mounting the said condensers, theV liability of breakage thereof from expansion or contraction dueto changes in temperature is prevented, and the position of the;

condensers, with relation'to thelamp, may also be readily changed at will.

The projector c comprises a 'casing having a base c2 and a vertical wall cV approxi- 'A mately centrally thereof provided with an integral horizontal top member o* and a plate preferably in permanent connection on the side adjacent the lamp-box, said casinglli'eing also provided Vwith detachable front and rear walls, c and c", respectively,`lv

the former of which has twodoors 08 and cpivoted thereto, one on either side of the caslng c, said casing also carrying the` magavZine drum 01 thereover and the Ie-wind drum ci` thereunder for a (ribbon of lilm cl2 ,adapted to be passed lthrough the casing 1n a manner hereinafter described, A said druinsupports drums and casing being pmvideawah slots 613 and 614,. above and' below the casing, for the insertionpfthe film at any point intermediate- .0f its en carried pivotally by an arm d2 pivoted to a plate Z3 slidably mounted on the top of the casing and adjustable thereon by means of a shaft d* operable by means of a thumbnut d5 and carrying T with a fixed .rack said armlbeing Verti- A'cally adjustable by--means of an adjusting screw d8, and it will be observed that bot of these adjusting devices are in a position.

A convenient to the left hand of the operator while the projector is in operation and without any interruption thereof.

Arranged in the top of the casing, is `a sprocket e upon a shaft 62, heldin the Wall c3, at the other end of which is a bevel-gear y `e3, the ilm being passed around and eugaged by the said sprocket, and a tension device e* is provided for -insuringsuchengagement; adjacent the bottom of said casmg is a similarly arranged sprocket e5 upon a shaft vthe other end of'which carries a pinion e?, and a tension device eS is provided for this last named sprocket' to insure the engagement of the film thereby, said sproekets being in operativeco'nnection with each other by Imeans of a train of gears onvthe opposite sideof the said wall and comprising van internal gear e8- upon a shaft e carrying also'a spurgeare1 enmehsed with a pinion en mounted on: a stub-shaft which also carries a spur-gear e and av bevel-gear Ael", said last named "gear being enmeshed with a bevel 'pinion @non a vertical shaft e1!s carrying a bevel-gear e adjacent the gear'e, and a bevel pinion e 'engaged with the b ewel-gear e3, the said gears being of such sizes as to insure coincidental rotation of the vsprockets e and e, a crank arm e, being connectedwit'h the shaft e"` in order to arotate the gears and, in practice, a 'pulley e1 is also provided on the said'shaft e9 and abelt e2" connects the same with the re-wind drilim' th thi' 1 um' b 1v nga ng' 1 e ve -geare isa eve pinion lupon'fa shaftf24 provided with a flat side and-upon which is slidably Amounted a spiral pinion f engaging a spiral worm. f* upon a shaftf, the outer end of which cames a spur-gear ffenmeshed with a simi'- largear f mounted upon a stub-shaft which camesthe shutter fs, arrangedinay suitable said shutter in the? frm shown cla-mp1, 'smg two diametrically opposite blades a pinion d enmeshed I shaft e. and.u to 'the of an arc yof`approximately? 90'. degrees of aV circle, each, butthese blades maybe made of any desired size and of any desired number,and, if desired, the gears f and f7 may l f and an opening f10 is provided in the casing j9 inline withthe lens cell 0 and aperture m, as clearly shownin Fig. 6.

The spiral pinion fa is pivot-ally mounted on a spring actuated lever h pivoted at h2 -upon a sliding-block h3, adjustable in suit- `able bearings by meansof a screw h4, the

handle h5 of which is at the rear o f the projector and in a position Where it can be readily reached by the free hand of*l an operator, the said lever 7L being' normally forced against a plunger h sliglably mount- 'ed in a suitable guide k7, the contact being insured by means of the spring of the said lever which also forces the opposite end of the said plunger against a cam i mounted.

upon a drum 2 which is rotatable in the central Wall c3, said rotation bein plished ,by means of a leyer or han le A stub-shaft i* is mounted centrally of .the drum i? and is provided with an outer pinion #enmeshed with the spur-gear er and 'with an inner pinion i enmeshed witha pinion i7 mounted upon an eccentric stubshaft s Which also carries a disk 9 provided with a concentricrib 1 having an opening 11 therein, and' secured in the said disk i, centrally of the said openin isa pin 12 and a fly wheel @'13 is provide" for the shaft i@ Figs. 4, 5 and-6. .Arranged centrally of thedrum i2, at the side opposite ,the shaft .2, is a shaft k which carries' a star-wheel k2 at its inner end and a sprocket wheel fc3 at its outer end, said star-wheel having a plurality of Vconcavities in its periphery of the enterV the slots of the said star-Wheel, as

will be readily vseen by reference lto Fig. 10.

By reference to Figs. 3,5, '6, and 11, it will be seen that a light aperture or window m is provided in the rear of the prolav jector and inline with the condensers of the lamp-box, said window having a guide; m2 adjacent thereto for a firefdoor m3, salud' fire-door being connected'with a lever ml by means of a link m5, the'opposite endzof said lever being Nconnected by means ofi' a link ma with a lever m7: pivoted at msfand.

theother end of which rests uponthe flan of a sleeve m vertically movable upont ef of. 'whichziss in turn connected with the sleeve m9 by means of links m1?, and the rotation of the shaft 615 at a speed approximating the usual operating speed serves to move the blocks mtzoutwardly by centrifugalmotion, thus moving the sleeve m9 upwardly and carrying the outer end of the lever m7 downwardly to. elevate the end of the lever m4 and lire-A door m3 into'a position clear of the 'aper ture m, any material reduction in the speed of projector operation or a cessation thereof permitting the hre-door to again move downwardly into its protecting position, thuspreventing' the ignition of the film by thelamp. Y

By reference to Figs. 3, 6, and 11, it will be seen that a film trap-door n, is provided for exerting pressure upon the film adjaf` cent the aperture m, said trap-door being mounted upon a rod n2 normally forced outwardly by'means of a spring n3, clearly shown in lfig. 6, said rod having a double danged block In? secured thereto and slidable therewith and between the flanges of which notched arms n of the trap-door n are adapted to pass, whereby the said trap-door is detachably held in position and, by ref# erence to Fig. 3, it will be seen that the said block carries a notched arm n adapted to be engaged bya spring actuated pawl n? when forced into its extreme inwardposition by means ofthe plunger o8 on the rod n?, exteriorly of the projector, and in a position convenient to the free hand of the operator,

Y sary iniordertocleanse-the contacting side- Athe trap-door being readily removable when the said block is in' its innermost position, this being ladvantageous and in fact neces'- M Y of the door of minute particles of the film jon the `wall=o3-`off 1 the casing and said( wall. is providedwith -a slot o4 throughl which forms a coating thereon, this innermost position of the'trap-.door permitting 'also the threading of-the film through the 'the pafl 'q1/" and the s ring of* forcesthe springs/n to maintain "the film in close con;

tactj with .the intermizentfsprocket 163.', i 'f By reference to Figs. 3, fi, 5,and 6,?it1 l'will be'se'en that va lens-"cell o is provided which. isadjustable upon a `slidingblock' '021 by means of, locking-devices o, of any suitable character, saidvfblek 02 slidingbackwardly-or forwardly-in suitable guides `which passes vaV pin lo'if'securedT in -the block projector, andwhen it is desired -to per-Y m1t t he said trapfdoorto pass Atoioperative position all thatfis necessary to-release:

o2 aan pin lor tang;y second. to' meende.

- noticas of a rack o slidably mounted upon the opposite side of the wall o3, said rack beingin engagement with al pinionv o" upon a shaftsv o8 which extends upwardly through the top of the casing and is provided with a nut 0r" for the free Ahand of the operator.

As is well understood the film carrying the series of photographs is provided in a reel which is placed in the magazine o1", the door thereof, on the operatingside of the l projector, and of the re-wind au, having previously been opened,'after which the is passed'through the slot. 012'- aiid between the rollers c and o1 adjacent thereto, thence around the sprocket wheel e, `the tension devic'e eL having been moved backwardly to permit the same, thence downwardly at the rear of the casing o and around the inter-v operating device o9 is-conve'niently situated 1 niittent sprocket 7c3, the hlm trap-door having been moved backwardly while passing the film, and thence over 'the sprocket e and to the re-winddrum ou, through the slot c, the ilnr being passed loosely through the Tprojector and forming loops above thelm 'trap-door and beneath the intermittent sprocket to prevent undue strain upon the same at any time', after which the tension devices c? 'and es andl trap-door n are movedl into operative positions vand the vj :ufoje'ctor is ready for operation by means of the crank. e, the movement of which, Lat a proper speed, moves the fire-duerma' away from the aperture m andthe rays of light from the lamp-box are permitted to pass therethrough, through the lm, and through the lenses in the cell o and thus to the screen, the lamp-box being preferably' moved into yproject-orf'p'osition when the operator is ready to start projection. The crankv rotates the 'shaft e which in .roV

tetes the 'sprockets e' and e, through'tliilij-Qj train of .gears hereinbefore described, 'as well as the re-wind inthedrum cui., this not being shown as it isvof old and Wellfkuown construction; Thev crank operation also ac-'f 'tuates the pinion c which in turn .actuates the disk i, through the mediumv of the gears. j

a i7, and the pin 'i12 enters 011e of; the

slotsof the star-wheel 1:2 in each revo,- lutio-n', thus rotating the said fter-wheel through-an arc of'90 degrees, inthe form' of. construction shown, iiieach fullretaition of -the di'skt'?, thus feeding the film engaged by theinteimittent sprocket k3 inthe 'ratio Iof o ne period of movementto'threeof resti and; because 'ofthe fact that the star-wheel.,

'Pin lessened 011e 0? th.- Slotsfsf .the

said star-wheel and been engaged by both sides thereof, movement of` the star-wheel is accomplished without the impact ofthe -pin' therewith and consequent noise common '5 to machines of this type as at present cony structed, this being equally true when the said pin l2 leaves the slot in which it may be engaged, the star-wheel being positively locked just previous thereto, and the annoying and injurious clicking of projectors employing the st-ar-Wheel as at present constructed is prevented, and a smooth and noiseless operation results. v L

While the operators. right hand is e n.

gaged in turning the crank e, his left handl upon its pivot a, and move the entire 'machine, rotarily, upon the pedestal a2, in order to approximately adjust the projected pho? tographs upon the screen. If, however, the projected photographs shouldnot be accurately framed, or in other `words if. lthe line of divisionbetween two of them should be visible on the screen, all' that is necessary is to move the handle 3 upwardly or downf wardly from the normal'position shown inv Fig. 3, according to the direction of adjustment required and in the de e thereof.

` This lmovement; of the handle'z3A rotates the drum 2 and cam secured thereto, thereby moving the gear 7 through an arc of'a' cir-v cle having the shaft 4 as its center, this partial revolution of the gear T beingequally true of the disk 9 connected therewith and, in the revolution of the gear=T about the -gear fha degree of rotation-also results thereof andof the disk D and, when the machine is at rest and the handle is moved from the position shownlin full lines to that shown in dotted linesin 10, the starwheel 7:2 is slightly rotated by -the revolving movement of the disk i but this movement is compensated for by the rotation of the said disk and the pi11i12 merely slides .up into the star-wheel slot and -then moves again into the position shown when'the disk hasreachedits limit of movement indicatedin dotted lines, thus producing -nomaterial effect upon the star-wheel nor uponI the intermittent sprocket connected therewith, but

thtmoment of initial star-wheel rotation is materially changed for, if the crank ef vshould be turned with theV` parts inthe positions shown in Afull lines in Fig'.-10, initial star-wheel rotation occurs at the instant of' crank movement, vbecause of the direction of rotation of the disk ,'throughl the train of N 'y j gears vconnecting it with the said crank,

whereas, the parts were in the positions indicated in dotted lines, it will require a rotation of 270 degrees of a circle before the pin 1 2 engages thel star-wheel to rotate the same, and the portion of the periphery of the intermittent sprocket engaging the ilin at the moment lof initial movement isy changed, `these' being the two extreme positions of the disk 9 and no adjustment of the ilm results. However, in each degree of movement of the handle 3, between its eX- treme positions, a different relationship` oci curs between the pin 12 and the star-wheel 742, thus changing, in like degree, the portion of the periphery ofthe intermittent. sprocket engaging the film, therefore changing the relationship between the photographs on the lm and the aperture m, as well as the mol ment of initial movement of the film for, if

the movement o f the handle 3 should be vthrough an arc of 45 degrees, the disk 9 is then directly beneath the star-wheel and turning of the crank rotates the disk 9 and thus the star-.wheel through an arc o f 45 degrees before the concavities in the periphery thereof can engage the p eriphery of the rib' 10, thus resulting in a 45 degree rotation of the intermittent sprocket and ak consequent adjustment of `the lm photographs with 1relation to the aperture m, this adjustment` being one half the'height of a photograph, for the reason that it is in the centralposi- -tion of the handle 3, and in the two extreme positions of which the relationship between photograph and aperture are alike, and it will thus be noted that any degree of movement of the said handle has a correspondy ing eectupon the relationshipbetween the photographs on the ilin .and .the said aper of the said ture, and accurate framing photo raphs results.

As ereinbefore stated the handle` s rotates the'cam and, by reference to Fig. 7,

it will be seen that the plunger h is correspondingl moved eithe wardly, thus movingythe spiral pinion f3 longitudinally of theshaft f2 and, as the said pinion cannot rotate on its shaft .in this. sliding movement, the teeth thereon between the shutter f8 and the aperture of the projector, and, because the dimensions of the parts areso'designed as to produce such result, the shuttermovement is in the degree of intermittentsprocket movement, andin a corresponding direction, and .thus in the degree and direction of Elm adjustoutwardly -or Ilnecessarily rotate the spiral gear f* in the ment for framing the photographs, this f dualk result depending upon the degree and direction of movementof the handle 2'. If,

hovvever, there is no coincidental relationship between the nlm and shutterzmovegenerally at the top and bottom of the screen, generally termed ghost, andfit is therefore necessary to changethe relation` ship between the iilm movement' and the moment of shutter eclipse in' order that these f .occur simultaneously for, it the shutter be so positioned as to close the aperture previous tofilm movement, the period ot projection is reduced and the shutter has passed 'the aperture before the nlm has come to'rest for another eriod ot projection, thus resulting in gest, and this is equallytrue it the .nlm movement occur previous to the moment of aperture closure by the shutter but, because ot the movement of the -slideblock. ha, by means of the screvv h4 and button fr thereomsimultanews hlm and shutter operation may be attained, according to the degree and direction of movement oi the block h for, the spring maintaining the lever h against the plunger ha at all times, movement oi the block ha moves the spiral pinion f3 CorrespondinglyJu and, as the-spiral pinion cannot rotate on its shaft, rbtation ot the spiral gear f4 results, with a consequent adjustment ot the shutter with relation to the aperture, this adjustment being for changing the relationship between the nlm' movement and moment 'ont shutter eclipse in order to make them coincidental,

Whereas the handle '53 is tor simultaneous adjustment of the shutter and nlm with respect to the aperture, both of these adjusting devices being conveniently situated at the rear of the projector tor manipulation by the free hand ot the operatorv it Will thus be seen that ll provide aprojector the parts of Which are inolosdd within a fire-proof envelop, but which permits adjustment of allot the operativa arts of, and functions, exteriorly of the sai envelop and in aposition readily accessible tothe left hand of cthe operator, while his lrighthand is enga ed in turning the crank el", andldurin 4t el projection of the yseries of photograp the framing thereof being operative parts of the projectorfromtheir normal positions, an automatic shutter, adjustment resultingvduring the Elm 'adjustment and in lthe degree thereof, and shutter adjustment, independentA ofthe y adjustment, is very easily vaccoxvri'plished,these last named features being ver important in this art, means having been ongsought to accom lish the said results. l

v'I e entl device is'ompact, welll'al-l 'anced in appearance,..adjustableto allpos-` sible conditions, I absolutely safe' fromy fire, automatic in all its actions, independent in accomplished 'without moving any off themeansv connected with said leverI for mo knetoscope operation. adjustments, eminentlypracticah and well*A 5.

'notiert adaptedto the purpose lor `which it is designed and, While certain preferred details of construction to accomplish certain results are shown and described, it will be obvious that many changes thereover may be made and still be within .the spirit ci this 'invention and vvithoutssacricing any advantagess l-lavin fully described the invention, what is claimed as new, and desired to secure by Letters Patent, is

l. lin a kinetoscope having an vaperture therein, a` source or' light, a strip of' film passing over said aperture, means for intermittently moving said nlm, and` a shutter for closing od' the light; means for adjustving the film -WithA relation to -said aperture and for adjusting said 4shutter in the dgree of lm adjustment, simultaneously, and means for changing the relationship between `said nlm moving means and said shutter operation during kinetoscope operation.

2. lln a kinetoscope having an aperturel the-rein, a, source orl light, a strip of film passing over said aperture, means for intermittently moving said lilm, and a shutter for closing .od the light; means for adjust- 'ing the nlm, Wit-h relation to said aperture and for adjusting said shutter in the degrec of nlm adjustment, simultaneously, and means for independently adjusting said' shutter with respect to said aperture during kinetoscope operation'.

3; ln' a kinetoscope having an aperture therein, a source of light, a strip ofwlm passing over said aperture, means for intermittently moving said film, and a shutter `ior vclosing on' the light; means, in a polsition'- convenient to the tree hand of the .'operator, for adjusting the film with relation to said 'aperture and for adjusting said shutter in thedegree of film adjustment, simultaneously, and means for independ- [ently adjusting said shutter with respect to said aperture during kinetoscope operation.

4. In a. kinetosco e having an aperture therein', a source o light, a strip 'of lm 5 passing over said' aperture, means forl intermittently moving said ilm,"and ashutterl for closing ot the light; a lever, in aposi- 115 ion convenient tothe free hand of the perator, for adjusting the film with rela-- tlon to 'said aperture, a train of manually operable-gears, a spiral gear in. o rative connectionpwith said shutter, a spira pinion', 120i enmeshedwith said spiral gear-1n operative j connection with said trainof'gears v'and 'x said'spiral pinion longitiidinally-,of sai spiral gear to adjust said shutter, simulta.- neously with and' in the degree of said 4 jadjustment, and means for changing the relationship between said'ilm and shutter, i

gldnetoscope havingian aperture/130 i therein, a source of light, a strip of .ilm passing over said aperture, means for intermittently moving said film, and a shutter for closing off the light; a lever, in xa position convenient to the free hand of the operator, for adjust-ing the film with relation to said aperture, a train of manually operable gears, a spiral gear in operative connection with said shutter, a spiral pinion enmeshed with said spiral gear and in operative connection with said t-rain of gears and means connected with said lever for moving said spiralpinion longitudinally of saidspiralA gear to adjust said shutter, simultaneously with and. in the degree of said vfilm adjustment, and means for changing the relationship between said film and shutter, comprising a supplemental lever in pivotal connection fwith a slide-block and means= for adjusting the position of said block, the movement of `said block moving the spiral pinion longitudinally of the spiral. gear inthe degree-of said block movement to adjust the shutter independently of said first named lever.

' 6. In a kinet-oscope having an aperture therein, a source of light, a strip of lm passing over said aperture, means for ntermittently moving said film, and a shutter for closing. olf the light; va lever, in a position convenient to the free hand of the operator, for adjusting the film with relation to said aperture, a train of manually operable gears, a spiral gear in operative connection with said shutter, a spiral pinion enmeshed with said spiral gear and in operative connection with said train of gears and means co-nneoted with said lever for moving said spiral pinion longitudinally of said spiral gear to adjust saidv shutterfs'imultaneously with and in the degree of said ilm adjust-ment, and means for changing the relationship between said'ilm and shutter, comprising al supplemental lever inpivotal connection with a slide-block and a screw for adjusting the position of saida block, the movement of, said blockmoving the spiral pinion longitudinally of the spiral gear in the degree of said block movement to adjust the shutter independently of said first named lever'. v y

In testimony that I claim the foregoing as my invent-ion I have signed my name in presence of the subscribing witnesses this 17th day of February 1911.

EDWIN S. PORTER.

IVitnesses:

H. H. Frrz,

J. C. LARSEN. 

